一种加密算法

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

using Nutqq;

namespace QQencrypt
{
    public partial class Form1 : Form
    {
        private Crypter QQCrypter = new Crypter();
        public Form1()
        {
            InitializeComponent();
        }

        private void buttonEncrypt_Click(object sender, EventArgs e)
        {
            try
            {
                byte[] source = ASCIIEncoding.ASCII.GetBytes(textBoxSource.Text);
                byte[] key = ASCIIEncoding.ASCII.GetBytes(textBoxKey.Text);
                byte[] Encrypt = QQCrypter.encrypt(source, key);
                textBoxEncrypt.Text = ASCIIEncoding.ASCII.GetString(Encrypt);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

private void Form1_Load(object sender, EventArgs e)
{

}

        private void buttonDecrypt_Click(object sender, EventArgs e)
        {

            try
            {
                byte[] Encrypt = ASCIIEncoding.ASCII.GetBytes(textBoxEncrypt.Text);
                byte[] Decrypt = QQCrypter.decrypt(Encrypt,ASCIIEncoding.ASCII.GetBytes(textBoxKey.Text));
                textBoxDecrypt.Text = ASCIIEncoding.ASCII.GetString(Decrypt);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

        }
    }
}